1 files changed, 54 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_shadingobject.cpp b/core/fpdfapi/fpdf_page/cpdf_shadingobject.cpp
new file mode 100644
index 0000000000..16287fe692
--- /dev/null
+++ b/core/fpdfapi/fpdf_page/cpdf_shadingobject.cpp
@@ -0,0 +1,54 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fpdfapi/fpdf_page/include/cpdf_shadingobject.h"
+
+#include "core/fpdfapi/fpdf_page/pageint.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+
+CPDF_ShadingObject::CPDF_ShadingObject() : m_pShading(nullptr) {}
+
+CPDF_ShadingObject::~CPDF_ShadingObject() {}
+
+CPDF_ShadingObject* CPDF_ShadingObject::Clone() const {
+  CPDF_ShadingObject* obj = new CPDF_ShadingObject;
+  obj->CopyData(this);
+
+  obj->m_pShading = m_pShading;
+  if (obj->m_pShading && obj->m_pShading->m_pDocument) {
+    CPDF_DocPageData* pDocPageData =
+        obj->m_pShading->m_pDocument->GetPageData();
+    obj->m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern(
+        obj->m_pShading->m_pShadingObj, m_pShading->m_bShadingObj,
+        &obj->m_pShading->m_ParentMatrix);
+  }
+  obj->m_Matrix = m_Matrix;
+  return obj;
+}
+
+void CPDF_ShadingObject::Transform(const CFX_Matrix& matrix) {
+  if (!m_ClipPath.IsNull()) {
+    m_ClipPath.GetModify();
+    m_ClipPath.Transform(matrix);
+  }
+  m_Matrix.Concat(matrix);
+  if (!m_ClipPath.IsNull()) {
+    CalcBoundingBox();
+  } else {
+    matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
+  }
+}
+
+void CPDF_ShadingObject::CalcBoundingBox() {
+  if (m_ClipPath.IsNull()) {
+    return;
+  }
+  CFX_FloatRect rect = m_ClipPath.GetClipBox();
+  m_Left = rect.left;
+  m_Bottom = rect.bottom;
+  m_Right = rect.right;
+  m_Top = rect.top;
+}